Leviticus 3:6

3 And he shall offer of the sacrifice of the peace-offering, an offering made by fire to the LORD; the fat that covereth the inwards, and all the fat that [is] upon the inwards,

4 And the two kidneys, and the fat that [is] on them, which [is] by the flanks, and the caul above the liver, with the kidneys, it shall he take away.

5 And Aaron's sons shall burn it on the altar, upon the burnt-sacrifice which [is] upon the wood that [is] on the fire: [it is] an offering made by fire, of a sweet savor to the LORD.

6 And if his offering for a sacrifice of peace-offering to the LORD shall be [of] the flock, male or female; he shall offer it without blemish.

7 If he shall offer a lamb for his offering, then shall he offer it before the LORD.

8 And he shall lay his hand upon the head of his offering, and kill it before the tabernacle of the congregation: and Aaron's sons shall sprinkle the blood of it around upon the altar.

9 And he shall offer of the sacrifice of the peace-offering an offering made by fire to the LORD: its fat, [and] the whole rump, that shall he take off hard by the back-bone; and the fat that covereth the inwards, and all the fat that [is] upon the inwards,